The invention discloses a method and device for enhancing magnetic disturbance based on gas injection to inhibit an escape current. The method comprises the steps: mounting a gas injection device on aTokamak vacuum chamber; loading gas to be injected into the gas injection device in advance; connecting a trigger control end of a switching valve of the gas injection device to a Tokamak central control system; when a plasma stably operates, controlling the Tokamak central control system not to trigger the switching valve and the gas injection device not to be started; and when the plasma is tobe disrupted, controlling the Tokamak central control system to trigger the switching valve to start the gas injection device, and making the gas injection device inject a gas into the plasma. The gasinjection device comprises a gas storage part, the switching valve and an injection nozzle. According to the method, the gas is injected into the plasma when the plasma is to be disrupted, and the gas entering the plasma disturbs a local current of the plasma to result in magnetic field disturbance, so that the formation of the escape current is inhibited, and the damage of the escape current tothe device is avoided.

Method and device for enhancing magnetic disturbance based on gas injection to inhibit escape current

The invention discloses a method for realizing the acceleration of high-flow-intensity electrons based on a tokamak device. The method includes the following steps that: the tokamak device is switchedon, so that stable plasma current can be formed; a tokamak central control system injects a gas into plasmas at a preset time point, stable plasma current having been formed in the plasmas, so that ahigh-flow-intensity electron beam can be formed; whether the high-flow-intensity electron beam deviates an equilibrium position is monitored at intervals of preset monitoring time after the high-flow-intensity electron beam is formed; and when the high-flow-intensity electron beam deviates the equilibrium position, the tokamak central control system energizes a poloidal field coil, so that a magnetic field can be generated to pull the high-flow-intensity electron beam to the equilibrium position. With the method of the invention adopted, the flow intensity of the electron beam can be as highas an order of megaamperes, which is higher than the flow intensity of the electrons of an existing electron linear accelerator by 108 orders. The method is based on the tokamak device; and the electron beam with very high flow intensity can be realized by means of the injection of a large amount of gas; a multi-stage acceleration structure is not required; and a control method is simple.

Method for realizing acceleration of high-flow-intensity electrons based on tokamak device

The invention discloses a method for charging a fusion reactor plasma core by using sandwich projectiles. The sandwich projectiles are placed in a charging room, and a vacuum pump unit is connected with the charging room to provide a vacuum environment for the charging room to avoid surface oxidation of metal shells of the sandwich projectiles; and a feeding pipe is connected with the charging room and a projectile injector, and the projectile injector is a device providing power for high-speed projectiles. According to the method, a double-layer sandwich projectile injection way is adopted, lithium or beryllium protective shells are used on the surface layers, and the inner layers are filled with solid fusion fuel hydrogen isotopes or lithium deuteride materials; and the sandwich projectiles are injected into plasma at high speed during discharge of the fusion reactor high-temperature plasma, ablative resistance of the metal shells on the surface layers of the sandwich projectiles isused for protecting nuclear fuel in the inner layers of the sandwich projectiles passing through a steep table base region at the edge of the plasma and enter the plasma core, and the requirement forcharging the combustion plasma core is met.

Method for charging fusion reactor plasma core by using sandwich projectiles

The invention discloses a pressure-adjustable gas storage container and full-automatic gas injection system suitable for an EAST Tokamak device. The pressure-adjustable gas storage container and full-automatic gas injection system comprises a gas storage container, a control cabinet, a full-automatic gas extraction and compensation valve, a piezoelectric-valve water cooling system, and a man-machine operation interface written by Labview. The gas storage container has a gas inlet for receiving gas and a gas outlet for outputting gas. Firstly, working gas goes from a compressing cylinder into the gas storage container via an oxygen pressure-reducing valve, with magnitude and stability of the pressure in the gas storage container being controlled by multiple valves. Finally, the working gas is controlled by a high-speed piezoelectric valve to enter a cellular nozzle via a one-way protection valve, so as to be sprayed out. An industrial control computer, an N1 board card, an electronic unit and a solenoid valve are installed inside the control cabinet. The piezoelectric-valve water cooling system is used to achieve the cooling and electromagnetic shielding effects which are required during installation of the piezoelectric valve inside a vacuum chamber. Finally, setting and real-time monitoring of an experiment system are realized by means of the man-machine operation interface written by the Labview.

Pressure-adjustable gas storage container and full-automatic gas injection system suitable for EAST Tokamak device

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Pressure-adjustable gas storage container and full-automatic gas injection system suitable for EAST Tokamak device